How To Attach Cabinets Together?

How To Attach Cabinets Together?

When installing cabinets in a kitchen, bathroom, or other area, it is often necessary to attach them together to create a cohesive and functional unit. Attaching cabinets together is a relatively simple process that requires a few basic tools and some careful planning. Here is a step-by-step guide on how to attach cabinets together.

1. Measure and Mark the Cabinet Locations

Measure and Mark the Cabinet Locations

Before you begin attaching the cabinets, you need to measure and mark the locations where the cabinets will be installed. Use a level to ensure that the markings are straight and level. This will help ensure that the cabinets are properly aligned when they are attached together.

2. Remove Cabinet Doors and Drawers

Remove Cabinet Doors and Drawers

To make it easier to attach the cabinets together, it’s a good idea to remove the cabinet doors and drawers before you begin. This will give you more space to work and allow you to see the mounting points on the cabinets more clearly.

3. Align the Cabinets

Align the Cabinets

Once you have marked the locations for the cabinets, you can begin aligning them. Use a level to ensure that the cabinets are straight and level, and use shims to adjust the height as needed. Make sure that the cabinets are flush with each other and that there are no gaps between them.

4. Drill Pilot Holes

Drill Pilot Holes

To attach the cabinets together, you will need to drill pilot holes through the cabinet frames. Use a drill bit that is slightly smaller than the screws you will be using to attach the cabinets. Drill the holes in the frame of the cabinet that will be on the bottom.

5. Attach Cabinets Together

Once you have drilled the pilot holes, you can attach the cabinets together using screws. Use screws that are long enough to go through both cabinet frames but not so long that they will go all the way through the front of the cabinet. Drive the screws into the pilot holes, making sure that they are snug but not too tight.After the cabinets are attached together, you can replace the cabinet doors and drawers. This will help hide the screws and give the cabinets a finished look.

Attach Cabinets


In conclusion, attaching cabinets together is a simple process that requires some basic tools and careful planning. By measuring and marking the cabinet locations, aligning the cabinets, drilling pilot holes, and attaching the cabinets together with screws, you can create a sturdy and functional unit that will provide years of use and enjoyment.


  1. Use a stud finder to locate the studs behind the wall where you will attach the cabinets. Mark the center of each stud with a pencil.
  2. Pre-drill holes into the back of the cabinet where you will attach it to the wall. The holes should be slightly smaller than the screws you will use.
  3. Place the cabinet against the wall in the location you marked, ensuring it is level. Use clamps to hold it in place.
  4. Use wood screws to attach the cabinet to the wall studs, making sure the screws are long enough to securely fasten the cabinet to the wall.

The size of the screw you should use to attach cabinets together can vary depending on the thickness of the cabinet material and the size of the hardware. However, as a general guideline, a 2 ½ inch or 3-inch long #8 screw is commonly used to attach cabinets together.

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